/**
 * Created with IntelliJ IEDA.
 * Description:
 * User:86186
 * Date:2022-05-20
 * Time:20:49
 */
//抽象类
abstract class B{
    public int a;
    public static int b;
    public void func(){

    }
    //抽象方法
    public abstract void draw();//1
    public abstract void draw2();//2
}
abstract class A extends B {
    public abstract void draw3();//3
}
class C extends A{

    @Override
    public void draw() {

    }

    @Override
    public void draw2() {

    }

    @Override
    public void draw3() {

    }
}

public class DEmo {
    public static void main(String[] args) {

    }
}
